LEWA triplex®process pumps for high-pressure processes

LEWA triplex are rugged process diaphragm pumps with the patented LEWA DPS diaphragm protection system. It is the right solution for high-pressure processes in all industries and for a wide variety of fluids. Thanks to the space-saving monoblock design, it is ideally suited for small installation spaces.

The LEWA triplex achieves flow rates of up to 180 m³/h and discharge pressures of up to 1200 bar.

LEWA triplex®Compact, rugged, reliable.

Whether in the oil and gas industry, the chemical industry, the food industry or the energy sector, the LEWA triplex diaphragm process pump has been used everywhere in high-pressure applications.

The pump features tried-and-tested, patented LEWA diaphragm technology, absolutely secure and reliable operation and the world’s most compact design for a process pump. It also has the advantages of a long service life, minimal life cycle costs and high energy efficiency.

It is available in six different sizes, this allows its use in a wide assortment of processes and applications and lets it fulfill a wide range of requirements.

Good reasons for a LEWA triplex®

The LEWA triplex is a hydraulically actuated diaphragm process pump with a compact design that offers numerous advantages in relation to comparable pumps during high-pressure processes.

Solid, compact design

The LEWA triplex features a solid, durable and long-lasting overall design resulting from a one-piece crankcase and double bearing crankshaft. The space-saving monoblock design makes the triplex the world’s most compact process pump. This also makes it ideal for applications and processes with little installation space, such as oil drilling platforms.

Low-pulsation flow rate

The triplex series features very smooth running and a low-pulsation flow rate. The even phasing of pistons (eccentric offset) makes this possible. This means there is usually no need to install pulsation dampers in the pipeline system.

Unique suction capacity

The unique suction capacity of the LEWA triplex diaphragm process pump distinguishes it from other pumps. With an absolute suction pressure of up to 0.1 bar, it provides more than just a wide array of safe installation options. The operating costs for the entire system can also be decreased compared to other pumps.

Absolutely safe and reliable startup

Starting up the process pump is safe, reliable and easy: When not operating, a spring fixes the diaphragm in a neutral position at all times. This ensures that the diaphragm is never damaged due to incorrect positioning when starting up.

Safety and reliability in extreme operating states

For us, safety and reliability come first: The pump is not subjected to damage, even after operating errors occur or in extreme operating states. We offer maximum protection for user and machine through built-in safety mechanisms—not only when excess primary pressure is present, but also when the pressure or suction line is closed.

Suitable for virtually all fluids

The triplex series is suitable for almost all liquids thanks to its flexible design. Whether they are dangerous, toxic, abrasive, viscous, environmentally harmful or sensitive fluids, application-specific configuration always gives you the correct diaphragm process pump.

Patented sandwich diaphragm

Our patented sandwich diaphragm is not just extremely durable, it is also well-protected. The LEWA DPS diaphragm protection system and diaphragm monitoring system report any damage to the diaphragm before it tears and has a chance to contaminate the pumped fluid.

Integrated pressure relief valve

A pressure relief valve in the hydraulic part of the diaphragm pump prevents potential overload situations in operation. This valve is individually adjustable and can therefore be adapted to different operating situations.

Vertical flange motor

Our triplex pumps up to the G3R size feature an integrated reduction gear unit and a vertically attached flange motor to save space.

API 675 standard

The triplex series fulfills the internationally valid quality standard of the American Petroleum Institute API 675. In this standard, all requirements for a displacement pump in industrial settings are defined with respect to design, construction and performance.

Low maintenance costs and a long service life

Our pumps feature extremely low maintenance costs and a long service life. If regular maintenance intervals are maintained, our diaphragm pumps can operate up to 40 years.

High energy efficiency

LEWA process pumps achieve the highest efficiency of all pump technologies. Our triplex series also combines high efficiency with low energy consumption.

Worldwide standards

We comply with globally applicable standards such as VDMA 24284 and 24286-10 when designing our pumps.

Hermetically sealed

Diaphragm pumps work without dynamic seals. This forms a hermetically sealed working area. No emissions escape to the outside, and contamination of the fluid is impossible.

Videos about LEWA triplex®

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LEWA triplex G3M Process Pump: Interview with CMO Stefan Glasmeyer

LEWA introduces the new triplex process diaphragm pump G3M. With its compact monoblock design and the engine concept with a one-piece crank shaft, the new pump is very efficient. Compared to previous solutions, up to 30 percent footprint and weight can be saved. Thus, the G3M is particularly suitable for applications where space and weight play an important role, e. g. on offshore platforms.
At ACHEMA 2015, LEWA CMO Stefan Glasmeyer talks about the advantages and the enormous market potential of the G3M process diaphragm pump.

Options

Customized valves

LEWA uses numerous special types of valves such as specially hardened valves for liquified gases or valves with minimal dead space for the food and pharmaceutical production.

Diverse connection geometries

Our pumps are equipped with all common connection geometries such as DIN standard, BASF's high-pressure standard, American ANSI, JIS, or your individual requirements. Customized configurations are possible.

Performance spectrum

With the combination of various pump heads and gear units, the LEWA triplex diaphragm process pump covers a wide performance spectrum. This allows us to provide you with a high-performance, energy-saving pump for any desired application.

G3S, G3F, G3G, G3M, G3R installation dimensions

G3U, G3T installation dimensions

G3U, G3T installation dimensions

Pump head variants

We provide various pump heads for different applications. Here, the spectrum ranges from all-purpose variants to special designs for high temperatures, pressures or aggressive fluids.

Pump head M500

Universal diaphragm pump head with PTFE sandwich diaphragm for high flow rates. Proven, durable, reliable and with diaphragm position control.

Type

M500

Pressure

350 bar

Flow rate

19 m³/h

Temperature

-50/+150 °C

Viscosity

100.000 mPa∙s

Operational capability

Can be installed on all ecoflow diaphragm metering pumps ≥ LDE.

Pump head M900

State of the art universal diaphragm pump head with PTFE sandwich diaphragm for maximum operational reliability The patented DPS technology also enables a suction lift cabability that is globally unique in the field of hydraulically actuated diaphragm pumps. Can be installed on all ecoflow pumps.

Type

M900

Pressure

500 bar

Flow rate

6 m³/h

Temperature

-20/+150 °C

Viscosity

100.000 mPa∙s

Operational capability

Can be installed on all ecoflow diaphragm metering pumps.

Pump head M800

Universal diaphragm pump head with PTFE sandwich diaphragm for extreme pressures. The special geometry of the diaphragm clamping system enables the use of PTFE diaphragms in pressure ranges up to 1000 bar and thus results in a very compact shape. Very economical solution in the range of high pressures, especially in comparison to pump heads with metal diaphragms.

Type

M800

Pressure

1.000 bar

Flow rate

1,1 m³/h

Temperature

-10/+60 °C

Viscosity

100.000 mPa∙s

Operational capability

Can be installed on all ecoflow process diaphragm pumps ≥ LDF.

Pump head M400

Proven pump head with metal diaphragm for extreme pressures and high temperatures. Also suitable when a high degree of permeation resistance is required. The diaphragm is working between two contour plates, limiting the deflection of the diaphragm and providing an extreme level of operational reliability. The diaphragm monitoring system offers a plus for safety by immediately displaying the damage of a diaphragm layer.

Type

M400

Pressure

1.200 bar

Flow rate

0,8 m³/h (M400)

Temperature

-40/+200 °C

Viscosity

500 mPa∙s

Operational capability

M400 can be installed on all ecoflow process diaphragm pumps ≥ LDF.

Special pump heads in remote head design

Some tasks in process engineering include the metering or circulation of media with critical properties like high temperature and high abrasivity. These critical conditions frequently need to be kept away from the displacer system of the metering pump, either to protect the system or its operating personnel. A normal metering pump is not suitable for such tasks due to its compact design.

Type

MR / MV / KV

Pressure

500 bar

Flow rate

19 m³/h

Temperature

-70/+400 °C

Viscosity

100.000 mPa∙s

Operational capability

Remote pump heads can be installed on all LEWA ecoflow metering and process pumps and on all LEWA triplex metering and process pumps.